The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2008
Filed:
Nov. 21, 2006
Seiji Oda, Shizuoka, JP;
Yasuhiro Okamoto, Shizuoka, JP;
Osamu Kimura, Shizuoka, JP;
Mitsuyoshi Anzai, Shizuoka, JP;
Hidefumi Ushijima, Shizuoka, JP;
Seiji Oda, Shizuoka, JP;
Yasuhiro Okamoto, Shizuoka, JP;
Osamu Kimura, Shizuoka, JP;
Mitsuyoshi Anzai, Shizuoka, JP;
Hidefumi Ushijima, Shizuoka, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
A fluid-measuring device intermittently drives a heater during a measurement period and receives outputs of the lateral side temperature sensors as lateral side temperature signals upon non-driving whenever the heater stops heating during a measuring period. Then, the fluid-measuring device receives outputs of the lateral side temperature sensors in response to the heating of the heateras lateral side temperature signals upon driving corresponding to the lateral side temperature signals upon non-driving. The fluid-measuring device also receives upstream and downstream side temperature signals outputted from upstream and downstream side temperature sensors corresponding to the lateral side temperature signals upon driving. The fluid-measuring device detects physical properties data of the fluid on the basis of the lateral side temperature signal upon non-driving and the lateral side temperature signal upon driving. The fluid-measuring device corrects the upstream and downstream side temperature signals on the basis of the physical properties data. The fluid-measuring device detects a temperature profile varied owing to the velocity of the fluid on the basis of the corrected upstream and downstream side temperature signals, and calculates the flow rate of the fluid.
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